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	<h1 id="firstHeading" class="firstHeading" lang="en">PSD and PSB</h1>
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		<div id="siteSub" class="noprint">From PanoTools.org Wiki</div>
		<div id="contentSub"><span class="mw-redirectedfrom">(Redirected from PSD<a class="external" href="https://wiki.panotools.org/index.php?title=PSD&amp;redirect=no">[*]</a>)</span></div>
		
		
		
		
		
		<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><p>The <b>Photoshop Document Format</b> is
a proprietary image format<a class="external" href="https://wiki.panotools.org/Image_format">[*]</a> by Adobe Inc used by Photoshop<a class="external" href="https://wiki.panotools.org/Photoshop">[*]</a> and some other Adobe products. It stores any image content that Photoshop can handle. 
</p><p>PSD is limited to 30,000 pixels either side. Since Photoshop version 8 (CS) a new format is available, that can store up to 300,000 pixel each side, the Photoshop large document format called PSB.
</p><p>Panotools can write 8 bit per channel PSD files with layers (sometimes called 24 bit files) or background layer only PSD files with 16 bit per channel (sometimes called 48 bit files).
</p><p>Some image viewers claim to be able to read PSD files. However, in each PSD file there is stored a flattened version of the contained multi layer image, which is displayed in this case.
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